Finding the Fourth Proportional to 120,314.58, 180,409.64 and 52,818.99
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Solution
The fourth proportional to 120,314.58, 180,409.64 and 52,818.99 is: 79,201.16
Step by Step Solution
- Step 1: Write the proportion equation
120,314.58 : 180,409.64 = 52,818.99 : x - Step 2: Convert to fraction form
120,314.58/180,409.64 = 52,818.99/x - Step 3: Cross multiply
120,314.58x = 180,409.64 × 52,818.99 - Step 4: Simplify right side
120,314.58x = 9,529,054,706.97 - Step 5: Solve for x
x = 9,529,054,706.97/120,314.58 - Step 6: Final answer
x = 79,201.16
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.